3621535 has 8 divisors (see below), whose sum is σ = 4357440. Its totient is φ = 2889504.

The previous prime is 3621529. The next prime is 3621559. The reversal of 3621535 is 5351263.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3621535 - 2¹⁷ = 3490463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834 + ... + 3256.

It is an arithmetic number, because the mean of its divisors is an integer number (544680).

Almost surely, 2^3621535 is an apocalyptic number.

3621535 is a deficient number, since it is larger than the sum of its proper divisors (735905).

3621535 is a wasteful number, since it uses less digits than its factorization.

3621535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937.

The product of its digits is 2700, while the sum is 25.

The square root of 3621535 is about 1903.0331053347. The cubic root of 3621535 is about 153.5668804958.

Adding to 3621535 its reverse (5351263), we get a palindrome (8972798).

The spelling of 3621535 in words is "three million, six hundred twenty-one thousand, five hundred thirty-five".